package
com.phodev.andtools.widget;
import
android.content.Context;
import
android.graphics.Canvas;
import
android.graphics.Color;
import
android.graphics.Paint;
import
android.graphics.PorterDuff;
import
android.graphics.PorterDuffXfermode;
import
android.graphics.RectF;
import
android.util.AttributeSet;
import
android.widget.ImageView;
/**
*
圆角ImageView
*
*
@author skg
*
*/
public
class
RoundImageView
extends
ImageView {
public
RoundImageView(Context context, AttributeSet attrs) {
super (context,
attrs);
init();
}
public
RoundImageView(Context context) {
super (context);
init();
}
private
final
RectF roundRect =
new
RectF();
private
float
rect_adius =
6 ;
private
final
Paint maskPaint =
new
Paint();
private
final
Paint zonePaint =
new
Paint();
private
void
init() {
maskPaint.setAntiAlias( true );
maskPaint.setXfermode( new
PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
//
zonePaint.setAntiAlias( true );
zonePaint.setColor(Color.WHITE);
//
float
density = getResources().getDisplayMetrics().density;
rect_adius
= rect_adius * density;
}
public
void
setRectAdius(
float
adius) {
rect_adius
= adius;
invalidate();
}
@Override
protected
void
onLayout(
boolean
changed,
int
left,
int
top,
int
right,
int
bottom) {
super .onLayout(changed,
left, top, right, bottom);
int
w = getWidth();
int
h = getHeight();
roundRect.set( 0 ,
0 ,
w, h);
}
@Override
public
void
draw(Canvas canvas) {
canvas.saveLayer(roundRect,
zonePaint, Canvas.ALL_SAVE_FLAG);
canvas.drawRoundRect(roundRect,
rect_adius, rect_adius, zonePaint);
//
canvas.saveLayer(roundRect,
maskPaint, Canvas.ALL_SAVE_FLAG);
super .draw(canvas);
canvas.restore();
}
}
|